ES422626A1 - Apparatus for receiving encoded facsimile signals with minimized effect of pulse jitter introduced during transmission - Google Patents

Apparatus for receiving encoded facsimile signals with minimized effect of pulse jitter introduced during transmission

Info

Publication number
ES422626A1
ES422626A1 ES422626A ES422626A ES422626A1 ES 422626 A1 ES422626 A1 ES 422626A1 ES 422626 A ES422626 A ES 422626A ES 422626 A ES422626 A ES 422626A ES 422626 A1 ES422626 A1 ES 422626A1
Authority
ES
Spain
Prior art keywords
introduced during
during transmission
jitter introduced
receiving encoded
facsimile signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES422626A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of ES422626A1 publication Critical patent/ES422626A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step

Abstract

Black and white runs of scanned image signals are encoded into binary information at a transmitting station, transmitted over a transmission link and received by apparatus at a receiving station. Jitter introduced during the transmission is detected by the apparatus prior to the decoding of the received signal to produce an error indicating pulse which is utilized to effect erasure of the image signals of the line scan in which the jitter has occurred to leave the line as a white run. As an alternative, the erased line is filled with the signals on the next line scan to thereby visually improve the quality of reproduced image.
ES422626A 1973-01-25 1974-01-25 Apparatus for receiving encoded facsimile signals with minimized effect of pulse jitter introduced during transmission Expired ES422626A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48010449A JPS4999221A (en) 1973-01-25 1973-01-25

Publications (1)

Publication Number Publication Date
ES422626A1 true ES422626A1 (en) 1976-09-01

Family

ID=11750442

Family Applications (1)

Application Number Title Priority Date Filing Date
ES422626A Expired ES422626A1 (en) 1973-01-25 1974-01-25 Apparatus for receiving encoded facsimile signals with minimized effect of pulse jitter introduced during transmission

Country Status (8)

Country Link
US (1) US3895186A (en)
JP (1) JPS4999221A (en)
AU (1) AU464834B2 (en)
CA (1) CA1007359A (en)
DE (1) DE2403601B2 (en)
ES (1) ES422626A1 (en)
FR (1) FR2215767B1 (en)
GB (1) GB1436675A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7608862A (en) * 1976-08-10 1978-02-14 Philips Nv SCHEME FOR TRANSMISSION OF CODED MESSAGES WITH A REDUCED TRANSMISSION TIME.
JPS6031304B2 (en) * 1977-02-24 1985-07-22 日本ビクター株式会社 Jitter measurement method
DE2711377C2 (en) * 1977-03-16 1984-08-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Method and arrangement for facsimile image transmission
US4188643A (en) * 1977-09-26 1980-02-12 U.S. Philips Corporation Method and arrangement for correcting errors in facsimile transmission
DE2927710A1 (en) * 1979-07-09 1981-01-29 Philips Nv METHOD AND ARRANGEMENT FOR ERROR CORRECTION IN FACSIMILE TRANSMISSION
US4350879A (en) * 1979-10-29 1982-09-21 Canadian Patents & Dev. Limited Time jitter determining apparatus
DE3309949A1 (en) * 1983-03-19 1984-09-20 Agfa-Gevaert Ag, 5090 Leverkusen Electronic image processing device
US4837634A (en) * 1984-06-05 1989-06-06 Canon Kabushik Kaisha Apparatus for decoding image codes obtained by compression process
JPH0619912B2 (en) * 1985-06-18 1994-03-16 シャープ株式会社 Digital magnetic recording / reproducing device
US5349463A (en) * 1990-08-17 1994-09-20 Victor Company Of Japan Optical radio repeater with signal quality detection
US5420904A (en) * 1992-07-21 1995-05-30 Gulick; Dale E. Signal averager
JP3117001B2 (en) * 1997-06-04 2000-12-11 日本電気株式会社 Digital signal processor
US9689930B2 (en) * 2014-10-07 2017-06-27 Infineon Technologies Ag Single LED failure detection in a LED chain

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353631A (en) * 1941-10-02 1944-07-18 Rca Corp Image reproducing apparatus
US3420956A (en) * 1966-01-04 1969-01-07 Bell Telephone Labor Inc Jitter reduction in pulse multiplexing systems employing pulse stuffing
US3800228A (en) * 1972-02-23 1974-03-26 Honeywell Inf Systems Phase jitter compensator
US3760167A (en) * 1972-03-16 1973-09-18 Honeywell Inf Systems Phase jitter special purpose computer

Also Published As

Publication number Publication date
AU464834B2 (en) 1975-09-11
US3895186A (en) 1975-07-15
DE2403601B2 (en) 1981-01-15
DE2403601A1 (en) 1974-08-15
CA1007359A (en) 1977-03-22
FR2215767A1 (en) 1974-08-23
FR2215767B1 (en) 1978-05-26
AU6484174A (en) 1975-07-24
GB1436675A (en) 1976-05-19
JPS4999221A (en) 1974-09-19

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